Products

Water Treatment Scale Corrosion Inhibitor HEDP /2809-21-4

China Water Treatment Scale Corrosion Inhibitor HEDP /2809-21-4, Find details about China HEDP, Corrosion Inhibitor from Water Treatment Scale Corrosion Inhibitor HEDP /2809-21-4

Model NO.
2809-21-4
Color
White
Appearance
Granulars
Type
Oil / Water Separation Agent
Series
Water Treatment Chemical
Name
HEDP
Content
60%, 90%
Application
Corrosion Inhibitor
Trademark
KIVI
Transport Package
Drums or Bags
Specification
25kgs/bag
Origin
China
HS Code
28092090
Model NO.
2809-21-4
Color
White
Appearance
Granulars
Type
Oil / Water Separation Agent
Series
Water Treatment Chemical
Name
HEDP
Content
60%, 90%
Application
Corrosion Inhibitor
Trademark
KIVI
Transport Package
Drums or Bags
Specification
25kgs/bag
Origin
China
HS Code
28092090

HEDP-water treatment chemical 
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 
(HEDP)


CAS No.  2809-21-4
Molecular Formula:   C2H8O7P2                Molecular weight: 206.02
Structural Formula:

Properties:

HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals' surfaces. HEDPshows excellent scale and corrosion inhibition effects under temperature 250ºC. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.
The solid state of HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals. 

Specification:

ItemsIndex
AppearanceClear, Colorless to pale yellow aqueous solutionWhite crystal powder
Active content (HEDP)%60.0 min90.0 min
Active content (HEDP·H2O)%-98.0 min
Phosphorous acid (as PO33-)%2.0 max0.8 max
Phosphoric acid  (as PO43- )%0.8 max0.5 max
Chloride (as Cl-)%0.02 max0.01 max
pH (1% water solution)2.0 max2.0 max
Density  (20ºC)g/cm31.40 min-
Fe, mg/L20.0 max10.0 max
Ca sequestration (mg CaCO3/g)500.0 min 

Usage:

HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.

Package and Storage:

HEDP liquid: 200L plastic drum,IBC(1000L),customers' requirement.
HEDP solid: 25kg/bag,customers' requirement.
Storage for twelve months in room shady and dry place.

Safety Protection:

Acidity, Avoid contact with eye and skin, once contacted, flush with water.

 

HEDP;HEDP(A);HEDPA;
Etidronic Acid;
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid;
Hydroxyethylidene-1,1-diphosphonicacid(HEDP);
1-Hydroxyethylidenediphosphonic Acid;
Hydroxyethylidene Diphosphonic acid(HEDP);
1-Hydroxy-1,1-Ethanediyl ester;
Oxyethylidenediphosphonic Acid(OEDP)
 
Keywords: HEDP
Related Products:  1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
                                    Monosodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na)
                                    Potassium salt of1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Kx)

Water Treatment Scale Corrosion Inhibitor HEDP /2809-21-4
 

You Might Also Like